dsa 0.1.1

New Features

• Implemented test cases for the singly linked lists.

Improvements

• Added len method to singly linked list to return the length of the list.
• Altered append method of singly linked list to be more readable.
• Included time complexity comments to the delete method of singly linked list.
• Changed names of directories to be more consistent with popular naming conventions.
• Reorganized library and removed Node class from singly linked list file and put it in its own file.
• Created skeleton for merge sort for linked list.

Bug Fixes

• None